Save Type Surname (from location) Usage Telugu Scripts గడ్డము(Telugu) Pronounced Pron. gu-DDU-muu [key] Other Forms FormsGaddam Meaning & History Variant of Gaddam. This surname means "on the hill" It is derived from the Telugu words "gadda (గడ్డ)" which means hill and "meeda (మీద)/meedi (మీది)" which means on. The two words were put together and shortened to Gaddamu.